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added JSON.simple 1.1 lib

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Redecouverte 2011-02-22 18:14:58 +01:00
parent 8edb6976fb
commit 8c428bb399
12 changed files with 2184 additions and 0 deletions
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147
src/org/json/simple/ItemList.java Normal file
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/*
* $Id: ItemList.java,v 1.1 2006/04/15 14:10:48 platform Exp $
* Created on 2006-3-24
*/
package org.json.simple;
import java.util.ArrayList;
import java.util.List;
import java.util.StringTokenizer;
/**
* |a:b:c| => |a|,|b|,|c|
* |:| => ||,||
* |a:| => |a|,||
* @author FangYidong<fangyidong@yahoo.com.cn>
*/
public class ItemList {
private String sp=",";
List items=new ArrayList();
public ItemList(){}
public ItemList(String s){
this.split(s,sp,items);
}
public ItemList(String s,String sp){
this.sp=s;
this.split(s,sp,items);
}
public ItemList(String s,String sp,boolean isMultiToken){
split(s,sp,items,isMultiToken);
}
public List getItems(){
return this.items;
}
public String[] getArray(){
return (String[])this.items.toArray();
}
public void split(String s,String sp,List append,boolean isMultiToken){
if(s==null || sp==null)
return;
if(isMultiToken){
StringTokenizer tokens=new StringTokenizer(s,sp);
while(tokens.hasMoreTokens()){
append.add(tokens.nextToken().trim());
}
}
else{
this.split(s,sp,append);
}
}
public void split(String s,String sp,List append){
if(s==null || sp==null)
return;
int pos=0;
int prevPos=0;
do{
prevPos=pos;
pos=s.indexOf(sp,pos);
if(pos==-1)
break;
append.add(s.substring(prevPos,pos).trim());
pos+=sp.length();
}while(pos!=-1);
append.add(s.substring(prevPos).trim());
}
public void setSP(String sp){
this.sp=sp;
}
public void add(int i,String item){
if(item==null)
return;
items.add(i,item.trim());
}
public void add(String item){
if(item==null)
return;
items.add(item.trim());
}
public void addAll(ItemList list){
items.addAll(list.items);
}
public void addAll(String s){
this.split(s,sp,items);
}
public void addAll(String s,String sp){
this.split(s,sp,items);
}
public void addAll(String s,String sp,boolean isMultiToken){
this.split(s,sp,items,isMultiToken);
}
/**
* @param i 0-based
* @return
*/
public String get(int i){
return (String)items.get(i);
}
public int size(){
return items.size();
}
public String toString(){
return toString(sp);
}
public String toString(String sp){
StringBuffer sb=new StringBuffer();
for(int i=0;i<items.size();i++){
if(i==0)
sb.append(items.get(i));
else{
sb.append(sp);
sb.append(items.get(i));
}
}
return sb.toString();
}
public void clear(){
items.clear();
}
public void reset(){
sp=",";
items.clear();
}
}

107
src/org/json/simple/JSONArray.java Normal file
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/*
* $Id: JSONArray.java,v 1.1 2006/04/15 14:10:48 platform Exp $
* Created on 2006-4-10
*/
package org.json.simple;
import java.io.IOException;
import java.io.Writer;
import java.util.ArrayList;
import java.util.Iterator;
import java.util.List;
/**
* A JSON array. JSONObject supports java.util.List interface.
*
* @author FangYidong<fangyidong@yahoo.com.cn>
*/
public class JSONArray extends ArrayList implements List, JSONAware, JSONStreamAware {
private static final long serialVersionUID = 3957988303675231981L;
/**
* Encode a list into JSON text and write it to out.
* If this list is also a JSONStreamAware or a JSONAware, JSONStreamAware and JSONAware specific behaviours will be ignored at this top level.
*
* @see org.json.simple.JSONValue#writeJSONString(Object, Writer)
*
* @param list
* @param out
*/
public static void writeJSONString(List list, Writer out) throws IOException{
if(list == null){
out.write("null");
return;
}
boolean first = true;
Iterator iter=list.iterator();
out.write('[');
while(iter.hasNext()){
if(first)
first = false;
else
out.write(',');
Object value=iter.next();
if(value == null){
out.write("null");
continue;
}
JSONValue.writeJSONString(value, out);
}
out.write(']');
}
public void writeJSONString(Writer out) throws IOException{
writeJSONString(this, out);
}
/**
* Convert a list to JSON text. The result is a JSON array.
* If this list is also a JSONAware, JSONAware specific behaviours will be omitted at this top level.
*
* @see org.json.simple.JSONValue#toJSONString(Object)
*
* @param list
* @return JSON text, or "null" if list is null.
*/
public static String toJSONString(List list){
if(list == null)
return "null";
boolean first = true;
StringBuffer sb = new StringBuffer();
Iterator iter=list.iterator();
sb.append('[');
while(iter.hasNext()){
if(first)
first = false;
else
sb.append(',');
Object value=iter.next();
if(value == null){
sb.append("null");
continue;
}
sb.append(JSONValue.toJSONString(value));
}
sb.append(']');
return sb.toString();
}
public String toJSONString(){
return toJSONString(this);
}
public String toString() {
return toJSONString();
}
}

12
src/org/json/simple/JSONAware.java Normal file
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package org.json.simple;
/**
* Beans that support customized output of JSON text shall implement this interface.
* @author FangYidong<fangyidong@yahoo.com.cn>
*/
public interface JSONAware {
/**
* @return JSON text
*/
String toJSONString();
}

129
src/org/json/simple/JSONObject.java Normal file
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/*
* $Id: JSONObject.java,v 1.1 2006/04/15 14:10:48 platform Exp $
* Created on 2006-4-10
*/
package org.json.simple;
import java.io.IOException;
import java.io.Writer;
import java.util.HashMap;
import java.util.Iterator;
import java.util.Map;
/**
* A JSON object. Key value pairs are unordered. JSONObject supports java.util.Map interface.
*
* @author FangYidong<fangyidong@yahoo.com.cn>
*/
public class JSONObject extends HashMap implements Map, JSONAware, JSONStreamAware{
private static final long serialVersionUID = -503443796854799292L;
/**
* Encode a map into JSON text and write it to out.
* If this map is also a JSONAware or JSONStreamAware, JSONAware or JSONStreamAware specific behaviours will be ignored at this top level.
*
* @see org.json.simple.JSONValue#writeJSONString(Object, Writer)
*
* @param map
* @param out
*/
public static void writeJSONString(Map map, Writer out) throws IOException {
if(map == null){
out.write("null");
return;
}
boolean first = true;
Iterator iter=map.entrySet().iterator();
out.write('{');
while(iter.hasNext()){
if(first)
first = false;
else
out.write(',');
Map.Entry entry=(Map.Entry)iter.next();
out.write('\"');
out.write(escape(String.valueOf(entry.getKey())));
out.write('\"');
out.write(':');
JSONValue.writeJSONString(entry.getValue(), out);
}
out.write('}');
}
public void writeJSONString(Writer out) throws IOException{
writeJSONString(this, out);
}
/**
* Convert a map to JSON text. The result is a JSON object.
* If this map is also a JSONAware, JSONAware specific behaviours will be omitted at this top level.
*
* @see org.json.simple.JSONValue#toJSONString(Object)
*
* @param map
* @return JSON text, or "null" if map is null.
*/
public static String toJSONString(Map map){
if(map == null)
return "null";
StringBuffer sb = new StringBuffer();
boolean first = true;
Iterator iter=map.entrySet().iterator();
sb.append('{');
while(iter.hasNext()){
if(first)
first = false;
else
sb.append(',');
Map.Entry entry=(Map.Entry)iter.next();
toJSONString(String.valueOf(entry.getKey()),entry.getValue(), sb);
}
sb.append('}');
return sb.toString();
}
public String toJSONString(){
return toJSONString(this);
}
private static String toJSONString(String key,Object value, StringBuffer sb){
sb.append('\"');
if(key == null)
sb.append("null");
else
JSONValue.escape(key, sb);
sb.append('\"').append(':');
sb.append(JSONValue.toJSONString(value));
return sb.toString();
}
public String toString(){
return toJSONString();
}
public static String toString(String key,Object value){
StringBuffer sb = new StringBuffer();
toJSONString(key, value, sb);
return sb.toString();
}
/**
* Escape quotes, \, /, \r, \n, \b, \f, \t and other control characters (U+0000 through U+001F).
* It's the same as JSONValue.escape() only for compatibility here.
*
* @see org.json.simple.JSONValue#escape(String)
*
* @param s
* @return
*/
public static String escape(String s){
return JSONValue.escape(s);
}
}

15
src/org/json/simple/JSONStreamAware.java Normal file
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package org.json.simple;
import java.io.IOException;
import java.io.Writer;
/**
* Beans that support customized output of JSON text to a writer shall implement this interface.
* @author FangYidong<fangyidong@yahoo.com.cn>
*/
public interface JSONStreamAware {
/**
* write JSON string to out.
*/
void writeJSONString(Writer out) throws IOException;
}

272
src/org/json/simple/JSONValue.java Normal file
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/*
* $Id: JSONValue.java,v 1.1 2006/04/15 14:37:04 platform Exp $
* Created on 2006-4-15
*/
package org.json.simple;
import java.io.IOException;
import java.io.Reader;
import java.io.StringReader;
import java.io.Writer;
import java.util.List;
import java.util.Map;
import org.json.simple.parser.JSONParser;
import org.json.simple.parser.ParseException;
/**
* @author FangYidong<fangyidong@yahoo.com.cn>
*/
public class JSONValue {
/**
* Parse JSON text into java object from the input source.
* Please use parseWithException() if you don't want to ignore the exception.
*
* @see org.json.simple.parser.JSONParser#parse(Reader)
* @see #parseWithException(Reader)
*
* @param in
* @return Instance of the following:
* org.json.simple.JSONObject,
* org.json.simple.JSONArray,
* java.lang.String,
* java.lang.Number,
* java.lang.Boolean,
* null
*
*/
public static Object parse(Reader in){
try{
JSONParser parser=new JSONParser();
return parser.parse(in);
}
catch(Exception e){
return null;
}
}
public static Object parse(String s){
StringReader in=new StringReader(s);
return parse(in);
}
/**
* Parse JSON text into java object from the input source.
*
* @see org.json.simple.parser.JSONParser
*
* @param in
* @return Instance of the following:
* org.json.simple.JSONObject,
* org.json.simple.JSONArray,
* java.lang.String,
* java.lang.Number,
* java.lang.Boolean,
* null
*
* @throws IOException
* @throws ParseException
*/
public static Object parseWithException(Reader in) throws IOException, ParseException{
JSONParser parser=new JSONParser();
return parser.parse(in);
}
public static Object parseWithException(String s) throws ParseException{
JSONParser parser=new JSONParser();
return parser.parse(s);
}
/**
* Encode an object into JSON text and write it to out.
* <p>
* If this object is a Map or a List, and it's also a JSONStreamAware or a JSONAware, JSONStreamAware or JSONAware will be considered firstly.
* <p>
* DO NOT call this method from writeJSONString(Writer) of a class that implements both JSONStreamAware and (Map or List) with
* "this" as the first parameter, use JSONObject.writeJSONString(Map, Writer) or JSONArray.writeJSONString(List, Writer) instead.
*
* @see org.json.simple.JSONObject#writeJSONString(Map, Writer)
* @see org.json.simple.JSONArray#writeJSONString(List, Writer)
*
* @param value
* @param writer
*/
public static void writeJSONString(Object value, Writer out) throws IOException {
if(value == null){
out.write("null");
return;
}
if(value instanceof String){
out.write('\"');
out.write(escape((String)value));
out.write('\"');
return;
}
if(value instanceof Double){
if(((Double)value).isInfinite() || ((Double)value).isNaN())
out.write("null");
else
out.write(value.toString());
return;
}
if(value instanceof Float){
if(((Float)value).isInfinite() || ((Float)value).isNaN())
out.write("null");
else
out.write(value.toString());
return;
}
if(value instanceof Number){
out.write(value.toString());
return;
}
if(value instanceof Boolean){
out.write(value.toString());
return;
}
if((value instanceof JSONStreamAware)){
((JSONStreamAware)value).writeJSONString(out);
return;
}
if((value instanceof JSONAware)){
out.write(((JSONAware)value).toJSONString());
return;
}
if(value instanceof Map){
JSONObject.writeJSONString((Map)value, out);
return;
}
if(value instanceof List){
JSONArray.writeJSONString((List)value, out);
return;
}
out.write(value.toString());
}
/**
* Convert an object to JSON text.
* <p>
* If this object is a Map or a List, and it's also a JSONAware, JSONAware will be considered firstly.
* <p>
* DO NOT call this method from toJSONString() of a class that implements both JSONAware and Map or List with
* "this" as the parameter, use JSONObject.toJSONString(Map) or JSONArray.toJSONString(List) instead.
*
* @see org.json.simple.JSONObject#toJSONString(Map)
* @see org.json.simple.JSONArray#toJSONString(List)
*
* @param value
* @return JSON text, or "null" if value is null or it's an NaN or an INF number.
*/
public static String toJSONString(Object value){
if(value == null)
return "null";
if(value instanceof String)
return "\""+escape((String)value)+"\"";
if(value instanceof Double){
if(((Double)value).isInfinite() || ((Double)value).isNaN())
return "null";
else
return value.toString();
}
if(value instanceof Float){
if(((Float)value).isInfinite() || ((Float)value).isNaN())
return "null";
else
return value.toString();
}
if(value instanceof Number)
return value.toString();
if(value instanceof Boolean)
return value.toString();
if((value instanceof JSONAware))
return ((JSONAware)value).toJSONString();
if(value instanceof Map)
return JSONObject.toJSONString((Map)value);
if(value instanceof List)
return JSONArray.toJSONString((List)value);
return value.toString();
}
/**
* Escape quotes, \, /, \r, \n, \b, \f, \t and other control characters (U+0000 through U+001F).
* @param s
* @return
*/
public static String escape(String s){
if(s==null)
return null;
StringBuffer sb = new StringBuffer();
escape(s, sb);
return sb.toString();
}
/**
* @param s - Must not be null.
* @param sb
*/
static void escape(String s, StringBuffer sb) {
for(int i=0;i<s.length();i++){
char ch=s.charAt(i);
switch(ch){
case '"':
sb.append("\\\"");
break;
case '\\':
sb.append("\\\\");
break;
case '\b':
sb.append("\\b");
break;
case '\f':
sb.append("\\f");
break;
case '\n':
sb.append("\\n");
break;
case '\r':
sb.append("\\r");
break;
case '\t':
sb.append("\\t");
break;
case '/':
sb.append("\\/");
break;
default:
//Reference: http://www.unicode.org/versions/Unicode5.1.0/
if((ch>='\u0000' && ch<='\u001F') || (ch>='\u007F' && ch<='\u009F') || (ch>='\u2000' && ch<='\u20FF')){
String ss=Integer.toHexString(ch);
sb.append("\\u");
for(int k=0;k<4-ss.length();k++){
sb.append('0');
}
sb.append(ss.toUpperCase());
}
else{
sb.append(ch);
}
}
}//for
}
}

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src/org/json/simple/parser/ContainerFactory.java Normal file
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package org.json.simple.parser;
import java.util.List;
import java.util.Map;
/**
* Container factory for creating containers for JSON object and JSON array.
*
* @see org.json.simple.parser.JSONParser#parse(java.io.Reader, ContainerFactory)
*
* @author FangYidong<fangyidong@yahoo.com.cn>
*/
public interface ContainerFactory {
/**
* @return A Map instance to store JSON object, or null if you want to use org.json.simple.JSONObject.
*/
Map createObjectContainer();
/**
* @return A List instance to store JSON array, or null if you want to use org.json.simple.JSONArray.
*/
List creatArrayContainer();
}

110
src/org/json/simple/parser/ContentHandler.java Normal file
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package org.json.simple.parser;
import java.io.IOException;
/**
* A simplified and stoppable SAX-like content handler for stream processing of JSON text.
*
* @see org.xml.sax.ContentHandler
* @see org.json.simple.parser.JSONParser#parse(java.io.Reader, ContentHandler, boolean)
*
* @author FangYidong<fangyidong@yahoo.com.cn>
*/
public interface ContentHandler {
/**
* Receive notification of the beginning of JSON processing.
* The parser will invoke this method only once.
*
* @throws ParseException
* - JSONParser will stop and throw the same exception to the caller when receiving this exception.
*/
void startJSON() throws ParseException, IOException;
/**
* Receive notification of the end of JSON processing.
*
* @throws ParseException
*/
void endJSON() throws ParseException, IOException;
/**
* Receive notification of the beginning of a JSON object.
*
* @return false if the handler wants to stop parsing after return.
* @throws ParseException
* - JSONParser will stop and throw the same exception to the caller when receiving this exception.
* @see #endJSON
*/
boolean startObject() throws ParseException, IOException;
/**
* Receive notification of the end of a JSON object.
*
* @return false if the handler wants to stop parsing after return.
* @throws ParseException
*
* @see #startObject
*/
boolean endObject() throws ParseException, IOException;
/**
* Receive notification of the beginning of a JSON object entry.
*
* @param key - Key of a JSON object entry.
*
* @return false if the handler wants to stop parsing after return.
* @throws ParseException
*
* @see #endObjectEntry
*/
boolean startObjectEntry(String key) throws ParseException, IOException;
/**
* Receive notification of the end of the value of previous object entry.
*
* @return false if the handler wants to stop parsing after return.
* @throws ParseException
*
* @see #startObjectEntry
*/
boolean endObjectEntry() throws ParseException, IOException;
/**
* Receive notification of the beginning of a JSON array.
*
* @return false if the handler wants to stop parsing after return.
* @throws ParseException
*
* @see #endArray
*/
boolean startArray() throws ParseException, IOException;
/**
* Receive notification of the end of a JSON array.
*
* @return false if the handler wants to stop parsing after return.
* @throws ParseException
*
* @see #startArray
*/
boolean endArray() throws ParseException, IOException;
/**
* Receive notification of the JSON primitive values:
* java.lang.String,
* java.lang.Number,
* java.lang.Boolean
* null
*
* @param value - Instance of the following:
* java.lang.String,
* java.lang.Number,
* java.lang.Boolean
* null
*
* @return false if the handler wants to stop parsing after return.
* @throws ParseException
*/
boolean primitive(Object value) throws ParseException, IOException;
}

533
src/org/json/simple/parser/JSONParser.java Normal file
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/*
* $Id: JSONParser.java,v 1.1 2006/04/15 14:10:48 platform Exp $
* Created on 2006-4-15
*/
package org.json.simple.parser;
import java.io.IOException;
import java.io.Reader;
import java.io.StringReader;
import java.util.LinkedList;
import java.util.List;
import java.util.Map;
import org.json.simple.JSONArray;
import org.json.simple.JSONObject;
/**
* Parser for JSON text. Please note that JSONParser is NOT thread-safe.
*
* @author FangYidong<fangyidong@yahoo.com.cn>
*/
public class JSONParser {
public static final int S_INIT=0;
public static final int S_IN_FINISHED_VALUE=1;//string,number,boolean,null,object,array
public static final int S_IN_OBJECT=2;
public static final int S_IN_ARRAY=3;
public static final int S_PASSED_PAIR_KEY=4;
public static final int S_IN_PAIR_VALUE=5;
public static final int S_END=6;
public static final int S_IN_ERROR=-1;
private LinkedList handlerStatusStack;
private Yylex lexer = new Yylex((Reader)null);
private Yytoken token = null;
private int status = S_INIT;
private int peekStatus(LinkedList statusStack){
if(statusStack.size()==0)
return -1;
Integer status=(Integer)statusStack.getFirst();
return status.intValue();
}
/**
* Reset the parser to the initial state without resetting the underlying reader.
*
*/
public void reset(){
token = null;
status = S_INIT;
handlerStatusStack = null;
}
/**
* Reset the parser to the initial state with a new character reader.
*
* @param in - The new character reader.
* @throws IOException
* @throws ParseException
*/
public void reset(Reader in){
lexer.yyreset(in);
reset();
}
/**
* @return The position of the beginning of the current token.
*/
public int getPosition(){
return lexer.getPosition();
}
public Object parse(String s) throws ParseException{
return parse(s, (ContainerFactory)null);
}
public Object parse(String s, ContainerFactory containerFactory) throws ParseException{
StringReader in=new StringReader(s);
try{
return parse(in, containerFactory);
}
catch(IOException ie){
/*
* Actually it will never happen.
*/
throw new ParseException(-1, ParseException.ERROR_UNEXPECTED_EXCEPTION, ie);
}
}
public Object parse(Reader in) throws IOException, ParseException{
return parse(in, (ContainerFactory)null);
}
/**
* Parse JSON text into java object from the input source.
*
* @param in
* @param containerFactory - Use this factory to createyour own JSON object and JSON array containers.
* @return Instance of the following:
* org.json.simple.JSONObject,
* org.json.simple.JSONArray,
* java.lang.String,
* java.lang.Number,
* java.lang.Boolean,
* null
*
* @throws IOException
* @throws ParseException
*/
public Object parse(Reader in, ContainerFactory containerFactory) throws IOException, ParseException{
reset(in);
LinkedList statusStack = new LinkedList();
LinkedList valueStack = new LinkedList();
try{
do{
nextToken();
switch(status){
case S_INIT:
switch(token.type){
case Yytoken.TYPE_VALUE:
status=S_IN_FINISHED_VALUE;
statusStack.addFirst(new Integer(status));
valueStack.addFirst(token.value);
break;
case Yytoken.TYPE_LEFT_BRACE:
status=S_IN_OBJECT;
statusStack.addFirst(new Integer(status));
valueStack.addFirst(createObjectContainer(containerFactory));
break;
case Yytoken.TYPE_LEFT_SQUARE:
status=S_IN_ARRAY;
statusStack.addFirst(new Integer(status));
valueStack.addFirst(createArrayContainer(containerFactory));
break;
default:
status=S_IN_ERROR;
}//inner switch
break;
case S_IN_FINISHED_VALUE:
if(token.type==Yytoken.TYPE_EOF)
return valueStack.removeFirst();
else
throw new ParseException(getPosition(), ParseException.ERROR_UNEXPECTED_TOKEN, token);
case S_IN_OBJECT:
switch(token.type){
case Yytoken.TYPE_COMMA:
break;
case Yytoken.TYPE_VALUE:
if(token.value instanceof String){
String key=(String)token.value;
valueStack.addFirst(key);
status=S_PASSED_PAIR_KEY;
statusStack.addFirst(new Integer(status));
}
else{
status=S_IN_ERROR;
}
break;
case Yytoken.TYPE_RIGHT_BRACE:
if(valueStack.size()>1){
statusStack.removeFirst();
valueStack.removeFirst();
status=peekStatus(statusStack);
}
else{
status=S_IN_FINISHED_VALUE;
}
break;
default:
status=S_IN_ERROR;
break;
}//inner switch
break;
case S_PASSED_PAIR_KEY:
switch(token.type){
case Yytoken.TYPE_COLON:
break;
case Yytoken.TYPE_VALUE:
statusStack.removeFirst();
String key=(String)valueStack.removeFirst();
Map parent=(Map)valueStack.getFirst();
parent.put(key,token.value);
status=peekStatus(statusStack);
break;
case Yytoken.TYPE_LEFT_SQUARE:
statusStack.removeFirst();
key=(String)valueStack.removeFirst();
parent=(Map)valueStack.getFirst();
List newArray=createArrayContainer(containerFactory);
parent.put(key,newArray);
status=S_IN_ARRAY;
statusStack.addFirst(new Integer(status));
valueStack.addFirst(newArray);
break;
case Yytoken.TYPE_LEFT_BRACE:
statusStack.removeFirst();
key=(String)valueStack.removeFirst();
parent=(Map)valueStack.getFirst();
Map newObject=createObjectContainer(containerFactory);
parent.put(key,newObject);
status=S_IN_OBJECT;
statusStack.addFirst(new Integer(status));
valueStack.addFirst(newObject);
break;
default:
status=S_IN_ERROR;
}
break;
case S_IN_ARRAY:
switch(token.type){
case Yytoken.TYPE_COMMA:
break;
case Yytoken.TYPE_VALUE:
List val=(List)valueStack.getFirst();
val.add(token.value);
break;
case Yytoken.TYPE_RIGHT_SQUARE:
if(valueStack.size()>1){
statusStack.removeFirst();
valueStack.removeFirst();
status=peekStatus(statusStack);
}
else{
status=S_IN_FINISHED_VALUE;
}
break;
case Yytoken.TYPE_LEFT_BRACE:
val=(List)valueStack.getFirst();
Map newObject=createObjectContainer(containerFactory);
val.add(newObject);
status=S_IN_OBJECT;
statusStack.addFirst(new Integer(status));
valueStack.addFirst(newObject);
break;
case Yytoken.TYPE_LEFT_SQUARE:
val=(List)valueStack.getFirst();
List newArray=createArrayContainer(containerFactory);
val.add(newArray);
status=S_IN_ARRAY;
statusStack.addFirst(new Integer(status));
valueStack.addFirst(newArray);
break;
default:
status=S_IN_ERROR;
}//inner switch
break;
case S_IN_ERROR:
throw new ParseException(getPosition(), ParseException.ERROR_UNEXPECTED_TOKEN, token);
}//switch
if(status==S_IN_ERROR){
throw new ParseException(getPosition(), ParseException.ERROR_UNEXPECTED_TOKEN, token);
}
}while(token.type!=Yytoken.TYPE_EOF);
}
catch(IOException ie){
throw ie;
}
throw new ParseException(getPosition(), ParseException.ERROR_UNEXPECTED_TOKEN, token);
}
private void nextToken() throws ParseException, IOException{
token = lexer.yylex();
if(token == null)
token = new Yytoken(Yytoken.TYPE_EOF, null);
}
private Map createObjectContainer(ContainerFactory containerFactory){
if(containerFactory == null)
return new JSONObject();
Map m = containerFactory.createObjectContainer();
if(m == null)
return new JSONObject();
return m;
}
private List createArrayContainer(ContainerFactory containerFactory){
if(containerFactory == null)
return new JSONArray();
List l = containerFactory.creatArrayContainer();
if(l == null)
return new JSONArray();
return l;
}
public void parse(String s, ContentHandler contentHandler) throws ParseException{
parse(s, contentHandler, false);
}
public void parse(String s, ContentHandler contentHandler, boolean isResume) throws ParseException{
StringReader in=new StringReader(s);
try{
parse(in, contentHandler, isResume);
}
catch(IOException ie){
/*
* Actually it will never happen.
*/
throw new ParseException(-1, ParseException.ERROR_UNEXPECTED_EXCEPTION, ie);
}
}
public void parse(Reader in, ContentHandler contentHandler) throws IOException, ParseException{
parse(in, contentHandler, false);
}
/**
* Stream processing of JSON text.
*
* @see ContentHandler
*
* @param in
* @param contentHandler
* @param isResume - Indicates if it continues previous parsing operation.
* If set to true, resume parsing the old stream, and parameter 'in' will be ignored.
* If this method is called for the first time in this instance, isResume will be ignored.
*
* @throws IOException
* @throws ParseException
*/
public void parse(Reader in, ContentHandler contentHandler, boolean isResume) throws IOException, ParseException{
if(!isResume){
reset(in);
handlerStatusStack = new LinkedList();
}
else{
if(handlerStatusStack == null){
isResume = false;
reset(in);
handlerStatusStack = new LinkedList();
}
}
LinkedList statusStack = handlerStatusStack;
try{
do{
switch(status){
case S_INIT:
contentHandler.startJSON();
nextToken();
switch(token.type){
case Yytoken.TYPE_VALUE:
status=S_IN_FINISHED_VALUE;
statusStack.addFirst(new Integer(status));
if(!contentHandler.primitive(token.value))
return;
break;
case Yytoken.TYPE_LEFT_BRACE:
status=S_IN_OBJECT;
statusStack.addFirst(new Integer(status));
if(!contentHandler.startObject())
return;
break;
case Yytoken.TYPE_LEFT_SQUARE:
status=S_IN_ARRAY;
statusStack.addFirst(new Integer(status));
if(!contentHandler.startArray())
return;
break;
default:
status=S_IN_ERROR;
}//inner switch
break;
case S_IN_FINISHED_VALUE:
nextToken();
if(token.type==Yytoken.TYPE_EOF){
contentHandler.endJSON();
status = S_END;
return;
}
else{
status = S_IN_ERROR;
throw new ParseException(getPosition(), ParseException.ERROR_UNEXPECTED_TOKEN, token);
}
case S_IN_OBJECT:
nextToken();
switch(token.type){
case Yytoken.TYPE_COMMA:
break;
case Yytoken.TYPE_VALUE:
if(token.value instanceof String){
String key=(String)token.value;
status=S_PASSED_PAIR_KEY;
statusStack.addFirst(new Integer(status));
if(!contentHandler.startObjectEntry(key))
return;
}
else{
status=S_IN_ERROR;
}
break;
case Yytoken.TYPE_RIGHT_BRACE:
if(statusStack.size()>1){
statusStack.removeFirst();
status=peekStatus(statusStack);
}
else{
status=S_IN_FINISHED_VALUE;
}
if(!contentHandler.endObject())
return;
break;
default:
status=S_IN_ERROR;
break;
}//inner switch
break;
case S_PASSED_PAIR_KEY:
nextToken();
switch(token.type){
case Yytoken.TYPE_COLON:
break;
case Yytoken.TYPE_VALUE:
statusStack.removeFirst();
status=peekStatus(statusStack);
if(!contentHandler.primitive(token.value))
return;
if(!contentHandler.endObjectEntry())
return;
break;
case Yytoken.TYPE_LEFT_SQUARE:
statusStack.removeFirst();
statusStack.addFirst(new Integer(S_IN_PAIR_VALUE));
status=S_IN_ARRAY;
statusStack.addFirst(new Integer(status));
if(!contentHandler.startArray())
return;
break;
case Yytoken.TYPE_LEFT_BRACE:
statusStack.removeFirst();
statusStack.addFirst(new Integer(S_IN_PAIR_VALUE));
status=S_IN_OBJECT;
statusStack.addFirst(new Integer(status));
if(!contentHandler.startObject())
return;
break;
default:
status=S_IN_ERROR;
}
break;
case S_IN_PAIR_VALUE:
/*
* S_IN_PAIR_VALUE is just a marker to indicate the end of an object entry, it doesn't proccess any token,
* therefore delay consuming token until next round.
*/
statusStack.removeFirst();
status = peekStatus(statusStack);
if(!contentHandler.endObjectEntry())
return;
break;
case S_IN_ARRAY:
nextToken();
switch(token.type){
case Yytoken.TYPE_COMMA:
break;
case Yytoken.TYPE_VALUE:
if(!contentHandler.primitive(token.value))
return;
break;
case Yytoken.TYPE_RIGHT_SQUARE:
if(statusStack.size()>1){
statusStack.removeFirst();
status=peekStatus(statusStack);
}
else{
status=S_IN_FINISHED_VALUE;
}
if(!contentHandler.endArray())
return;
break;
case Yytoken.TYPE_LEFT_BRACE:
status=S_IN_OBJECT;
statusStack.addFirst(new Integer(status));
if(!contentHandler.startObject())
return;
break;
case Yytoken.TYPE_LEFT_SQUARE:
status=S_IN_ARRAY;
statusStack.addFirst(new Integer(status));
if(!contentHandler.startArray())
return;
break;
default:
status=S_IN_ERROR;
}//inner switch
break;
case S_END:
return;
case S_IN_ERROR:
throw new ParseException(getPosition(), ParseException.ERROR_UNEXPECTED_TOKEN, token);
}//switch
if(status==S_IN_ERROR){
throw new ParseException(getPosition(), ParseException.ERROR_UNEXPECTED_TOKEN, token);
}
}while(token.type!=Yytoken.TYPE_EOF);
}
catch(IOException ie){
status = S_IN_ERROR;
throw ie;
}
catch(ParseException pe){
status = S_IN_ERROR;
throw pe;
}
catch(RuntimeException re){
status = S_IN_ERROR;
throw re;
}
catch(Error e){
status = S_IN_ERROR;
throw e;
}
status = S_IN_ERROR;
throw new ParseException(getPosition(), ParseException.ERROR_UNEXPECTED_TOKEN, token);
}
}

90
src/org/json/simple/parser/ParseException.java Normal file
View File

@ -0,0 +1,90 @@
package org.json.simple.parser;
/**
* ParseException explains why and where the error occurs in source JSON text.
*
* @author FangYidong<fangyidong@yahoo.com.cn>
*
*/
public class ParseException extends Exception {
private static final long serialVersionUID = -7880698968187728548L;
public static final int ERROR_UNEXPECTED_CHAR = 0;
public static final int ERROR_UNEXPECTED_TOKEN = 1;
public static final int ERROR_UNEXPECTED_EXCEPTION = 2;
private int errorType;
private Object unexpectedObject;
private int position;
public ParseException(int errorType){
this(-1, errorType, null);
}
public ParseException(int errorType, Object unexpectedObject){
this(-1, errorType, unexpectedObject);
}
public ParseException(int position, int errorType, Object unexpectedObject){
this.position = position;
this.errorType = errorType;
this.unexpectedObject = unexpectedObject;
}
public int getErrorType() {
return errorType;
}
public void setErrorType(int errorType) {
this.errorType = errorType;
}
/**
* @see org.json.simple.parser.JSONParser#getPosition()
*
* @return The character position (starting with 0) of the input where the error occurs.
*/
public int getPosition() {
return position;
}
public void setPosition(int position) {
this.position = position;
}
/**
* @see org.json.simple.parser.Yytoken
*
* @return One of the following base on the value of errorType:
* ERROR_UNEXPECTED_CHAR java.lang.Character
* ERROR_UNEXPECTED_TOKEN org.json.simple.parser.Yytoken
* ERROR_UNEXPECTED_EXCEPTION java.lang.Exception
*/
public Object getUnexpectedObject() {
return unexpectedObject;
}
public void setUnexpectedObject(Object unexpectedObject) {
this.unexpectedObject = unexpectedObject;
}
public String toString(){
StringBuffer sb = new StringBuffer();
switch(errorType){
case ERROR_UNEXPECTED_CHAR:
sb.append("Unexpected character (").append(unexpectedObject).append(") at position ").append(position).append(".");
break;
case ERROR_UNEXPECTED_TOKEN:
sb.append("Unexpected token ").append(unexpectedObject).append(" at position ").append(position).append(".");
break;
case ERROR_UNEXPECTED_EXCEPTION:
sb.append("Unexpected exception at position ").append(position).append(": ").append(unexpectedObject);
break;
default:
sb.append("Unkown error at position ").append(position).append(".");
break;
}
return sb.toString();
}
}

688
src/org/json/simple/parser/Yylex.java Normal file
View File

@ -0,0 +1,688 @@
/* The following code was generated by JFlex 1.4.2 */
package org.json.simple.parser;
class Yylex {
/** This character denotes the end of file */
public static final int YYEOF = -1;
/** initial size of the lookahead buffer */
private static final int ZZ_BUFFERSIZE = 16384;
/** lexical states */
public static final int YYINITIAL = 0;
public static final int STRING_BEGIN = 2;
/**
* ZZ_LEXSTATE[l] is the state in the DFA for the lexical state l
* ZZ_LEXSTATE[l+1] is the state in the DFA for the lexical state l
* at the beginning of a line
* l is of the form l = 2*k, k a non negative integer
*/
private static final int ZZ_LEXSTATE[] = {
0, 0, 1, 1
};
/**
* Translates characters to character classes
*/
private static final String ZZ_CMAP_PACKED =
"\11\0\1\7\1\7\2\0\1\7\22\0\1\7\1\0\1\11\10\0"+
"\1\6\1\31\1\2\1\4\1\12\12\3\1\32\6\0\4\1\1\5"+
"\1\1\24\0\1\27\1\10\1\30\3\0\1\22\1\13\2\1\1\21"+
"\1\14\5\0\1\23\1\0\1\15\3\0\1\16\1\24\1\17\1\20"+
"\5\0\1\25\1\0\1\26\uff82\0";
/**
* Translates characters to character classes
*/
private static final char [] ZZ_CMAP = zzUnpackCMap(ZZ_CMAP_PACKED);
/**
* Translates DFA states to action switch labels.
*/
private static final int [] ZZ_ACTION = zzUnpackAction();
private static final String ZZ_ACTION_PACKED_0 =
"\2\0\2\1\1\2\1\3\1\4\3\1\1\5\1\6"+
"\1\7\1\10\1\11\1\12\1\13\1\14\1\15\5\0"+
"\1\14\1\16\1\17\1\20\1\21\1\22\1\23\1\24"+
"\1\0\1\25\1\0\1\25\4\0\1\26\1\27\2\0"+
"\1\30";
private static int [] zzUnpackAction() {
int [] result = new int[45];
int offset = 0;
offset = zzUnpackAction(ZZ_ACTION_PACKED_0, offset, result);
return result;
}
private static int zzUnpackAction(String packed, int offset, int [] result) {
int i = 0; /* index in packed string */
int j = offset; /* index in unpacked array */
int l = packed.length();
while (i < l) {
int count = packed.charAt(i++);
int value = packed.charAt(i++);
do result[j++] = value; while (--count > 0);
}
return j;
}
/**
* Translates a state to a row index in the transition table
*/
private static final int [] ZZ_ROWMAP = zzUnpackRowMap();
private static final String ZZ_ROWMAP_PACKED_0 =
"\0\0\0\33\0\66\0\121\0\154\0\207\0\66\0\242"+
"\0\275\0\330\0\66\0\66\0\66\0\66\0\66\0\66"+
"\0\363\0\u010e\0\66\0\u0129\0\u0144\0\u015f\0\u017a\0\u0195"+
"\0\66\0\66\0\66\0\66\0\66\0\66\0\66\0\66"+
"\0\u01b0\0\u01cb\0\u01e6\0\u01e6\0\u0201\0\u021c\0\u0237\0\u0252"+
"\0\66\0\66\0\u026d\0\u0288\0\66";
private static int [] zzUnpackRowMap() {
int [] result = new int[45];
int offset = 0;
offset = zzUnpackRowMap(ZZ_ROWMAP_PACKED_0, offset, result);
return result;
}
private static int zzUnpackRowMap(String packed, int offset, int [] result) {
int i = 0; /* index in packed string */
int j = offset; /* index in unpacked array */
int l = packed.length();
while (i < l) {
int high = packed.charAt(i++) << 16;
result[j++] = high | packed.charAt(i++);
}
return j;
}
/**
* The transition table of the DFA
*/
private static final int ZZ_TRANS [] = {
2, 2, 3, 4, 2, 2, 2, 5, 2, 6,
2, 2, 7, 8, 2, 9, 2, 2, 2, 2,
2, 10, 11, 12, 13, 14, 15, 16, 16, 16,
16, 16, 16, 16, 16, 17, 18, 16, 16, 16,
16, 16, 16, 16, 16, 16, 16, 16, 16, 16,
16, 16, 16, 16, -1, -1, -1, -1, -1, -1,
-1, -1, -1, -1, -1, -1, -1, -1, -1, -1,
-1, -1, -1, -1, -1, -1, -1, -1, -1, -1,
-1, -1, -1, -1, 4, -1, -1, -1, -1, -1,
-1, -1, -1, -1, -1, -1, -1, -1, -1, -1,
-1, -1, -1, -1, -1, -1, -1, -1, -1, -1,
-1, 4, 19, 20, -1, -1, -1, -1, -1, -1,
-1, -1, -1, -1, -1, 20, -1, -1, -1, -1,
-1, -1, -1, -1, -1, -1, -1, -1, -1, -1,
-1, -1, 5, -1, -1, -1, -1, -1, -1, -1,
-1, -1, -1, -1, -1, -1, -1, -1, -1, -1,
-1, -1, -1, -1, -1, -1, -1, -1, -1, -1,
-1, -1, -1, -1, -1, -1, -1, -1, -1, -1,
21, -1, -1, -1, -1, -1, -1, -1, -1, -1,
-1, -1, -1, -1, -1, -1, -1, -1, -1, -1,
-1, -1, -1, -1, -1, 22, -1, -1, -1, -1,
-1, -1, -1, -1, -1, -1, -1, -1, -1, -1,
-1, -1, -1, -1, -1, -1, -1, -1, -1, -1,
23, -1, -1, -1, -1, -1, -1, -1, -1, -1,
-1, -1, -1, 16, 16, 16, 16, 16, 16, 16,
16, -1, -1, 16, 16, 16, 16, 16, 16, 16,
16, 16, 16, 16, 16, 16, 16, 16, 16, 16,
-1, -1, -1, -1, -1, -1, -1, -1, 24, 25,
26, 27, 28, 29, 30, 31, 32, -1, -1, -1,
-1, -1, -1, -1, -1, -1, -1, -1, -1, -1,
33, -1, -1, -1, -1, -1, -1, -1, -1, -1,
-1, -1, -1, -1, -1, -1, -1, -1, -1, -1,
-1, -1, -1, -1, -1, -1, 34, 35, -1, -1,
34, -1, -1, -1, -1, -1, -1, -1, -1, -1,
-1, -1, -1, -1, -1, -1, -1, -1, -1, -1,
-1, -1, -1, -1, -1, -1, -1, -1, -1, -1,
-1, -1, -1, -1, -1, -1, -1, -1, -1, -1,
36, -1, -1, -1, -1, -1, -1, -1, -1, -1,
-1, -1, -1, -1, -1, -1, -1, -1, -1, -1,
-1, -1, -1, -1, -1, -1, -1, 37, -1, -1,
-1, -1, -1, -1, -1, -1, -1, -1, -1, -1,
-1, -1, -1, -1, -1, -1, -1, -1, -1, -1,
-1, 38, -1, -1, -1, -1, -1, -1, -1, -1,
-1, -1, -1, 39, -1, 39, -1, 39, -1, -1,
-1, -1, -1, 39, 39, -1, -1, -1, -1, 39,
39, -1, -1, -1, -1, -1, -1, -1, -1, -1,
-1, -1, 33, -1, 20, -1, -1, -1, -1, -1,
-1, -1, -1, -1, -1, -1, 20, -1, -1, -1,
-1, -1, -1, -1, -1, -1, -1, -1, -1, 35,
-1, -1, -1, -1, -1, -1, -1, -1, -1, -1,
-1, -1, -1, -1, -1, -1, -1, -1, -1, -1,
-1, -1, -1, -1, -1, -1, -1, -1, -1, -1,
-1, -1, -1, -1, -1, -1, -1, -1, -1, -1,
-1, -1, -1, 38, -1, -1, -1, -1, -1, -1,
-1, -1, -1, -1, -1, -1, -1, -1, -1, -1,
-1, -1, -1, -1, -1, -1, -1, -1, -1, 40,
-1, -1, -1, -1, -1, -1, -1, -1, -1, -1,
-1, -1, -1, -1, -1, -1, -1, -1, -1, -1,
-1, -1, -1, -1, 41, -1, -1, -1, -1, -1,
-1, -1, -1, -1, -1, 42, -1, 42, -1, 42,
-1, -1, -1, -1, -1, 42, 42, -1, -1, -1,
-1, 42, 42, -1, -1, -1, -1, -1, -1, -1,
-1, -1, 43, -1, 43, -1, 43, -1, -1, -1,
-1, -1, 43, 43, -1, -1, -1, -1, 43, 43,
-1, -1, -1, -1, -1, -1, -1, -1, -1, 44,
-1, 44, -1, 44, -1, -1, -1, -1, -1, 44,
44, -1, -1, -1, -1, 44, 44, -1, -1, -1,
-1, -1, -1, -1, -1,
};
/* error codes */
private static final int ZZ_UNKNOWN_ERROR = 0;
private static final int ZZ_NO_MATCH = 1;
private static final int ZZ_PUSHBACK_2BIG = 2;
/* error messages for the codes above */
private static final String ZZ_ERROR_MSG[] = {
"Unkown internal scanner error",
"Error: could not match input",
"Error: pushback value was too large"
};
/**
* ZZ_ATTRIBUTE[aState] contains the attributes of state <code>aState</code>
*/
private static final int [] ZZ_ATTRIBUTE = zzUnpackAttribute();
private static final String ZZ_ATTRIBUTE_PACKED_0 =
"\2\0\1\11\3\1\1\11\3\1\6\11\2\1\1\11"+
"\5\0\10\11\1\0\1\1\1\0\1\1\4\0\2\11"+
"\2\0\1\11";
private static int [] zzUnpackAttribute() {
int [] result = new int[45];
int offset = 0;
offset = zzUnpackAttribute(ZZ_ATTRIBUTE_PACKED_0, offset, result);
return result;
}
private static int zzUnpackAttribute(String packed, int offset, int [] result) {
int i = 0; /* index in packed string */
int j = offset; /* index in unpacked array */
int l = packed.length();
while (i < l) {
int count = packed.charAt(i++);
int value = packed.charAt(i++);
do result[j++] = value; while (--count > 0);
}
return j;
}
/** the input device */
private java.io.Reader zzReader;
/** the current state of the DFA */
private int zzState;
/** the current lexical state */
private int zzLexicalState = YYINITIAL;
/** this buffer contains the current text to be matched and is
the source of the yytext() string */
private char zzBuffer[] = new char[ZZ_BUFFERSIZE];
/** the textposition at the last accepting state */
private int zzMarkedPos;
/** the current text position in the buffer */
private int zzCurrentPos;
/** startRead marks the beginning of the yytext() string in the buffer */
private int zzStartRead;
/** endRead marks the last character in the buffer, that has been read
from input */
private int zzEndRead;
/** number of newlines encountered up to the start of the matched text */
private int yyline;
/** the number of characters up to the start of the matched text */
private int yychar;
/**
* the number of characters from the last newline up to the start of the
* matched text
*/
private int yycolumn;
/**
* zzAtBOL == true <=> the scanner is currently at the beginning of a line
*/
private boolean zzAtBOL = true;
/** zzAtEOF == true <=> the scanner is at the EOF */
private boolean zzAtEOF;
/* user code: */
private StringBuffer sb=new StringBuffer();
int getPosition(){
return yychar;
}
/**
* Creates a new scanner
* There is also a java.io.InputStream version of this constructor.
*
* @param in the java.io.Reader to read input from.
*/
Yylex(java.io.Reader in) {
this.zzReader = in;
}
/**
* Creates a new scanner.
* There is also java.io.Reader version of this constructor.
*
* @param in the java.io.Inputstream to read input from.
*/
Yylex(java.io.InputStream in) {
this(new java.io.InputStreamReader(in));
}
/**
* Unpacks the compressed character translation table.
*
* @param packed the packed character translation table
* @return the unpacked character translation table
*/
private static char [] zzUnpackCMap(String packed) {
char [] map = new char[0x10000];
int i = 0; /* index in packed string */
int j = 0; /* index in unpacked array */
while (i < 90) {
int count = packed.charAt(i++);
char value = packed.charAt(i++);
do map[j++] = value; while (--count > 0);
}
return map;
}
/**
* Refills the input buffer.
*
* @return <code>false</code>, iff there was new input.
*
* @exception java.io.IOException if any I/O-Error occurs
*/
private boolean zzRefill() throws java.io.IOException {
/* first: make room (if you can) */
if (zzStartRead > 0) {
System.arraycopy(zzBuffer, zzStartRead,
zzBuffer, 0,
zzEndRead-zzStartRead);
/* translate stored positions */
zzEndRead-= zzStartRead;
zzCurrentPos-= zzStartRead;
zzMarkedPos-= zzStartRead;
zzStartRead = 0;
}
/* is the buffer big enough? */
if (zzCurrentPos >= zzBuffer.length) {
/* if not: blow it up */
char newBuffer[] = new char[zzCurrentPos*2];
System.arraycopy(zzBuffer, 0, newBuffer, 0, zzBuffer.length);
zzBuffer = newBuffer;
}
/* finally: fill the buffer with new input */
int numRead = zzReader.read(zzBuffer, zzEndRead,
zzBuffer.length-zzEndRead);
if (numRead > 0) {
zzEndRead+= numRead;
return false;
}
// unlikely but not impossible: read 0 characters, but not at end of stream
if (numRead == 0) {
int c = zzReader.read();
if (c == -1) {
return true;
} else {
zzBuffer[zzEndRead++] = (char) c;
return false;
}
}
// numRead < 0
return true;
}
/**
* Closes the input stream.
*/
public final void yyclose() throws java.io.IOException {
zzAtEOF = true; /* indicate end of file */
zzEndRead = zzStartRead; /* invalidate buffer */
if (zzReader != null)
zzReader.close();
}
/**
* Resets the scanner to read from a new input stream.
* Does not close the old reader.
*
* All internal variables are reset, the old input stream
* <b>cannot</b> be reused (internal buffer is discarded and lost).
* Lexical state is set to <tt>ZZ_INITIAL</tt>.
*
* @param reader the new input stream
*/
public final void yyreset(java.io.Reader reader) {
zzReader = reader;
zzAtBOL = true;
zzAtEOF = false;
zzEndRead = zzStartRead = 0;
zzCurrentPos = zzMarkedPos = 0;
yyline = yychar = yycolumn = 0;
zzLexicalState = YYINITIAL;
}
/**
* Returns the current lexical state.
*/
public final int yystate() {
return zzLexicalState;
}
/**
* Enters a new lexical state
*
* @param newState the new lexical state
*/
public final void yybegin(int newState) {
zzLexicalState = newState;
}
/**
* Returns the text matched by the current regular expression.
*/
public final String yytext() {
return new String( zzBuffer, zzStartRead, zzMarkedPos-zzStartRead );
}
/**
* Returns the character at position <tt>pos</tt> from the
* matched text.
*
* It is equivalent to yytext().charAt(pos), but faster
*
* @param pos the position of the character to fetch.
* A value from 0 to yylength()-1.
*
* @return the character at position pos
*/
public final char yycharat(int pos) {
return zzBuffer[zzStartRead+pos];
}
/**
* Returns the length of the matched text region.
*/
public final int yylength() {
return zzMarkedPos-zzStartRead;
}
/**
* Reports an error that occured while scanning.
*
* In a wellformed scanner (no or only correct usage of
* yypushback(int) and a match-all fallback rule) this method
* will only be called with things that "Can't Possibly Happen".
* If this method is called, something is seriously wrong
* (e.g. a JFlex bug producing a faulty scanner etc.).
*
* Usual syntax/scanner level error handling should be done
* in error fallback rules.
*
* @param errorCode the code of the errormessage to display
*/
private void zzScanError(int errorCode) {
String message;
try {
message = ZZ_ERROR_MSG[errorCode];
}
catch (ArrayIndexOutOfBoundsException e) {
message = ZZ_ERROR_MSG[ZZ_UNKNOWN_ERROR];
}
throw new Error(message);
}
/**
* Pushes the specified amount of characters back into the input stream.
*
* They will be read again by then next call of the scanning method
*
* @param number the number of characters to be read again.
* This number must not be greater than yylength()!
*/
public void yypushback(int number) {
if ( number > yylength() )
zzScanError(ZZ_PUSHBACK_2BIG);
zzMarkedPos -= number;
}
/**
* Resumes scanning until the next regular expression is matched,
* the end of input is encountered or an I/O-Error occurs.
*
* @return the next token
* @exception java.io.IOException if any I/O-Error occurs
*/
public Yytoken yylex() throws java.io.IOException, ParseException {
int zzInput;
int zzAction;
// cached fields:
int zzCurrentPosL;
int zzMarkedPosL;
int zzEndReadL = zzEndRead;
char [] zzBufferL = zzBuffer;
char [] zzCMapL = ZZ_CMAP;
int [] zzTransL = ZZ_TRANS;
int [] zzRowMapL = ZZ_ROWMAP;
int [] zzAttrL = ZZ_ATTRIBUTE;
while (true) {
zzMarkedPosL = zzMarkedPos;
yychar+= zzMarkedPosL-zzStartRead;
zzAction = -1;
zzCurrentPosL = zzCurrentPos = zzStartRead = zzMarkedPosL;
zzState = ZZ_LEXSTATE[zzLexicalState];
zzForAction: {
while (true) {
if (zzCurrentPosL < zzEndReadL)
zzInput = zzBufferL[zzCurrentPosL++];
else if (zzAtEOF) {
zzInput = YYEOF;
break zzForAction;
}
else {
// store back cached positions
zzCurrentPos = zzCurrentPosL;
zzMarkedPos = zzMarkedPosL;
boolean eof = zzRefill();
// get translated positions and possibly new buffer
zzCurrentPosL = zzCurrentPos;
zzMarkedPosL = zzMarkedPos;
zzBufferL = zzBuffer;
zzEndReadL = zzEndRead;
if (eof) {
zzInput = YYEOF;
break zzForAction;
}
else {
zzInput = zzBufferL[zzCurrentPosL++];
}
}
int zzNext = zzTransL[ zzRowMapL[zzState] + zzCMapL[zzInput] ];
if (zzNext == -1) break zzForAction;
zzState = zzNext;
int zzAttributes = zzAttrL[zzState];
if ( (zzAttributes & 1) == 1 ) {
zzAction = zzState;
zzMarkedPosL = zzCurrentPosL;
if ( (zzAttributes & 8) == 8 ) break zzForAction;
}
}
}
// store back cached position
zzMarkedPos = zzMarkedPosL;
switch (zzAction < 0 ? zzAction : ZZ_ACTION[zzAction]) {
case 11:
{ sb.append(yytext());
}
case 25: break;
case 4:
{ sb.delete(0, sb.length());yybegin(STRING_BEGIN);
}
case 26: break;
case 16:
{ sb.append('\b');
}
case 27: break;
case 6:
{ return new Yytoken(Yytoken.TYPE_RIGHT_BRACE,null);
}
case 28: break;
case 23:
{ Boolean val=Boolean.valueOf(yytext()); return new Yytoken(Yytoken.TYPE_VALUE, val);
}
case 29: break;
case 22:
{ return new Yytoken(Yytoken.TYPE_VALUE, null);
}
case 30: break;
case 13:
{ yybegin(YYINITIAL);return new Yytoken(Yytoken.TYPE_VALUE, sb.toString());
}
case 31: break;
case 12:
{ sb.append('\\');
}
case 32: break;
case 21:
{ Double val=Double.valueOf(yytext()); return new Yytoken(Yytoken.TYPE_VALUE, val);
}
case 33: break;
case 1:
{ throw new ParseException(yychar, ParseException.ERROR_UNEXPECTED_CHAR, new Character(yycharat(0)));
}
case 34: break;
case 8:
{ return new Yytoken(Yytoken.TYPE_RIGHT_SQUARE,null);
}
case 35: break;
case 19:
{ sb.append('\r');
}
case 36: break;
case 15:
{ sb.append('/');
}
case 37: break;
case 10:
{ return new Yytoken(Yytoken.TYPE_COLON,null);
}
case 38: break;
case 14:
{ sb.append('"');
}
case 39: break;
case 5:
{ return new Yytoken(Yytoken.TYPE_LEFT_BRACE,null);
}
case 40: break;
case 17:
{ sb.append('\f');
}
case 41: break;
case 24:
{ try{
int ch=Integer.parseInt(yytext().substring(2),16);
sb.append((char)ch);
}
catch(Exception e){
throw new ParseException(yychar, ParseException.ERROR_UNEXPECTED_EXCEPTION, e);
}
}
case 42: break;
case 20:
{ sb.append('\t');
}
case 43: break;
case 7:
{ return new Yytoken(Yytoken.TYPE_LEFT_SQUARE,null);
}
case 44: break;
case 2:
{ Long val=Long.valueOf(yytext()); return new Yytoken(Yytoken.TYPE_VALUE, val);
}
case 45: break;
case 18:
{ sb.append('\n');
}
case 46: break;
case 9:
{ return new Yytoken(Yytoken.TYPE_COMMA,null);
}
case 47: break;
case 3:
{
}
case 48: break;
default:
if (zzInput == YYEOF && zzStartRead == zzCurrentPos) {
zzAtEOF = true;
return null;
}
else {
zzScanError(ZZ_NO_MATCH);
}
}
}
}
}

58
src/org/json/simple/parser/Yytoken.java Normal file
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@ -0,0 +1,58 @@
/*
* $Id: Yytoken.java,v 1.1 2006/04/15 14:10:48 platform Exp $
* Created on 2006-4-15
*/
package org.json.simple.parser;
/**
* @author FangYidong<fangyidong@yahoo.com.cn>
*/
public class Yytoken {
public static final int TYPE_VALUE=0;//JSON primitive value: string,number,boolean,null
public static final int TYPE_LEFT_BRACE=1;
public static final int TYPE_RIGHT_BRACE=2;
public static final int TYPE_LEFT_SQUARE=3;
public static final int TYPE_RIGHT_SQUARE=4;
public static final int TYPE_COMMA=5;
public static final int TYPE_COLON=6;
public static final int TYPE_EOF=-1;//end of file
public int type=0;
public Object value=null;
public Yytoken(int type,Object value){
this.type=type;
this.value=value;
}
public String toString(){
StringBuffer sb = new StringBuffer();
switch(type){
case TYPE_VALUE:
sb.append("VALUE(").append(value).append(")");
break;
case TYPE_LEFT_BRACE:
sb.append("LEFT BRACE({)");
break;
case TYPE_RIGHT_BRACE:
sb.append("RIGHT BRACE(})");
break;
case TYPE_LEFT_SQUARE:
sb.append("LEFT SQUARE([)");
break;
case TYPE_RIGHT_SQUARE:
sb.append("RIGHT SQUARE(])");
break;
case TYPE_COMMA:
sb.append("COMMA(,)");
break;
case TYPE_COLON:
sb.append("COLON(:)");
break;
case TYPE_EOF:
sb.append("END OF FILE");
break;
}
return sb.toString();
}
}